Grinder attachment



FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown in the drawings illustrate environmental structure for the grinder attachment that forms no part of the claimed design. 

CLAIM The ornamental design for a grinder attachment, as shown and described. 